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Mesoscale Discussion 1849 | |
Mesoscale Discussion 1849 NWS Storm Prediction Center Norman OK 0254 AM CDT Wed Oct 13 2021 Areas affected...Portions of north-central into northeastern KS Concerning...Severe Thunderstorm Watch 525... Valid 130754Z - 130930Z The severe weather threat for Severe Thunderstorm Watch 525 continues. SUMMARY...Isolated strong/gusty winds remain possible in the short term. Downstream watch issuance into more of northeastern Kansas appears unlikely at this time. DISCUSSION...The northern portion of a squall line has recently weakened as it moved from north-central into northeastern KS. This is occurring largely due to a less favorable thermodynamic environment with eastward extent across northeastern KS. Fairly strong MLCIN should continue to temper updraft strength, even though low-level warm/moist advection is occurring with a stout, 50-60+ kt southerly low-level jet. Recent radar data from KTWX shows some strong inbound velocities within the line, and isolated strong/gusty winds may continue in the short term even with the marginal thermodynamic environment. At this point, it does not appear that the warm/moist advection at low levels will be enough to offset the nocturnal increase in convective inhibition. Accordingly, the overall severe threat should remain rather isolated/marginal, and downstream watch issuance appears unlikely at this time. ..Gleason.. 10/13/2021 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...TOP... LAT...LON 38639728 38959712 39959711 39969625 39419599 38579601 38639728 |
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